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EnglishThe electrochem. redn. was studied of Cu(II) complexes with 14 membered tetraaza macrocycles with different structural features and different degrees of unsatn. Each complex undergoes a reversible 1-electron redn. at the Hg electrode in MeOH contg. 0.1 M Et4NBF4. The Cu(II)/Cu(I) process in macrocycles systems can be promoted through modification of the ligands that (a) reduce its σ-donor ability by destabilizing Cu(II) and (b) increase its π-acceptor properties by stabilizing Cu(I). Geometrical effects favorable to formation of Cu(I) can be induced in a fixed coplanar array of 4 N atoms by rearranging the system of fused chelate rings.
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| Titolo: | σ and π Effects on the copper(II)/copper(I) redox couple potential in tetraazamacrocyclic complexes | |
| Autori: | ||
| Data di pubblicazione: | 1982 | |
| Rivista: | ||
| Abstract: | The electrochem. redn. was studied of Cu(II) complexes with 14 membered tetraaza macrocycles with different structural features and different degrees of unsatn. Each complex undergoes a reversible 1-electron redn. at the Hg electrode in MeOH contg. 0.1 M Et4NBF4. The Cu(II)/Cu(I) process in macrocycles systems can be promoted through modification of the ligands that (a) reduce its σ-donor ability by destabilizing Cu(II) and (b) increase its π-acceptor properties by stabilizing Cu(I). Geometrical effects favorable to formation of Cu(I) can be induced in a fixed coplanar array of 4 N atoms by rearranging the system of fused chelate rings. | |
| Handle: | http://hdl.handle.net/11571/455620 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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